My son also doesn't talk much. As in he will talk in his own language and everything starts with "D".
I think you just continue to talk to her and try to fuse words that she already know to form more meaningful words. Like she can say "mah", then try to make her say "mee".
I know some kids who only start talking at 2. But if by 3 your girl doesn't talk, you should see a doc.